Molecular formula: C73H108O12 Melting point: 110~125 celsius degree Appearance: White crystalline powder Light transmittance: (10g/100ml toluol)425nm>93% 500nm>95% Volatility: <0.5% Ash: <0.1% It used to be added in polypropylene and polyethylene to prolong service time of these products. It has no pollution and non-toxicity.